Patellar instability refers to a condition through which the kneecap (patella) which plays an unusual mission, as a pulley on which rest the quadriceps and patellar tendons, cannot stay in the middle of the knee moving out (Figure. 34), resulting in pain, sometimes it does not move towards the outside but you feel it will, it is known as apprehension, this type of instability is due to a set of variations in anatomy, for example by oblique muscle fibers not inserted in their places, or just developing something that is known as the trochlea Figure. 35 (front segment covered by cartilage in Lemus where the patella slides), it most common in younger women with valgus deformity.

 Figure. 34(abnormal displacement of the patella) See the difference with the other knee).

 Figure. 35. shows the abnormal position of the patella in both knees

Treatment

Depends on the anatomical variation that causes this instability or apprehension. It's like they say in France "treatment a la carte."

The tests you must subject yourself to are plain radiographs of both knees in frontal and profile view of the axial ball joints (Figure. 36) and a scanner (call ahead to send the order by fax if you want the parameters to be found in review).

Postoperative depends on the gestures that were made to balance the kneecap but in general walking is authorized, knee mobility is limited and a splint is needed.

The goal of treatment is to give focused and stable ball joints that the patient never had.

The probability that the patella again moved to the outside is less than 0.01 percent.

Category: The knee

Doctor

Alain Daher

Patellar instability refers to a condition through which the kneecap (patella) which plays an unusual mission, as a pulley on which rest the quadriceps and patellar tendons, cannot stay in the middle of the knee moving out (Figure. 34), resulting in pain, sometimes it does not move towards the outside but you feel it will, it is known as apprehension, this type of instability is due to a set of variations in anatomy, for example by oblique muscle fibers not inserted in their places, or just developing something that is known as the trochlea Figure. 35 (front segment covered by cartilage in Lemus where the patella slides), it most common in younger women with valgus deformity.

 Figure. 34(abnormal displacement of the patella) See the difference with the other knee).

 Figure. 35. shows the abnormal position of the patella in both knees

Treatment

Depends on the anatomical variation that causes this instability or apprehension. It's like they say in France "treatment a la carte."

The tests you must subject yourself to are plain radiographs of both knees in frontal and profile view of the axial ball joints (Figure. 36) and a scanner (call ahead to send the order by fax if you want the parameters to be found in review).

Postoperative depends on the gestures that were made to balance the kneecap but in general walking is authorized, knee mobility is limited and a splint is needed.

The goal of treatment is to give focused and stable ball joints that the patient never had.

The probability that the patella again moved to the outside is less than 0.01 percent.

Category: The knee